摘要
本文讨论了彩色图像着色的数值计算方法 ,即根据场景中物体表面的反射光谱能量分布来计算视觉响应的三刺激值。首先用线性模型来逼近物体表面的反射光谱连续函数。然后用高斯积分法、黎曼求和法进行了数值计算。最后把计算出来的三刺激值转化为色品座标 ,在色品图上与 CCD相机拍摄的图像进行了匹配 ,获得了理想效果。
WT5”BZ]:The method of numerical computation for color image rendering,which aims to calculate the tristimulus values of vision responses from the surface reflecting spectral power distribution in the scene,is presented in this paper.The linear model is exploited to approximate the reflecting continuous spectrum of the object surface and numerical computation is conducted via Gaussian quadrature (GQ) and Riemann summation (RS).The tristimulus values are converted to chromatic coordinates which match the images captured by CCD camera.The experiment results are promising. [WT5”HZ]
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2001年第6期631-634,共4页
Journal of Optoelectronics·Laser
关键词
彩色图像着色
数值计算
可见光谱
color image rendering
linear model
numerical computation
chromatic diagram
